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首页> 外文期刊>Marine Environmental Research >Variability in the structure of epiphytic assemblages of Posidonia oceanica in relation to human interferences in the Gulf of Gabes, Tunisia
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Variability in the structure of epiphytic assemblages of Posidonia oceanica in relation to human interferences in the Gulf of Gabes, Tunisia

机译：突尼斯加贝斯湾大洋波塞多尼亚附生组合结构的变化与人类干扰的关系

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摘要

In this study we evaluate whether the pattern of spatial variability of the macro-epiphyte assemblages of leaves of Posidonia oceanica differed in relation to anthropogenic interference in the Gulf of Gabes (southern coast of Tunisia). A hierarchical sampling design was used to compare epiphytic assemblages at 5 m depth in terms of abundance and spatial variability at disturbed and control locations. The results indicate that the biomass and mean percentage cover decreased at locations near the point of sewage outlet in comparison to control locations. These losses were related to the distance from the source of disturbance. This study revealed that the diversity is reduced in disturbed locations by the loss of biomass and the mean percentage cover, explained by means of a multiple-stressor model which plays an important role in the macro-epiphytes' setting. It is urgent to propose the best management plans to save the remaining P. oceanica meadow in the Gulf of Gabes and its associated epiphytes.
机译：在这项研究中，我们评估了加蓬湾（突尼斯南部海岸）的人为干扰，大洋波塞冬叶片的大型附生植物群的空间变异性模式是否有所不同。分层抽样设计用于比较受干扰位置和控制位置在5 m深度的附生组合的丰度和空间变异性。结果表明，与控制地点相比，污水排放点附近的地点的生物量和平均覆盖率降低了。这些损失与到干扰源的距离有关。这项研究表明，受生物量的损失和平均覆盖率的降低，受干扰位置的多样性降低了，这是通过多重应激模型来解释的，该模型在大型附生植物的环境中起着重要的作用。迫切需要提出最好的管理计划，以保存加贝斯湾及其相关附生植物中剩余的大洋紫菜草甸。

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  • 来源
    《Marine Environmental Research》 |2010年第5期|p.411-421|共11页
  • 作者

    Mounir Ben Brahim; Asma Hamza; Imen Hannachi; Ahmed Rebai; Othman Jarboui; Abderrahmen Bouain; Lotfi Aleya;

  • 作者单位

    Universite de Sfax, Faculty des Sciences Sfax, Route Soukra Km 3.5, BP 802, 3018 Sfax, Tunisia,Institut National des Sciences et Technologies de la Mer, Centre de Sfax, Rue Madagascar, BP 1035, Sfax, CP 3018, Tunisia;

    Institut National des Sciences et Technologies de la Mer, Centre de Sfax, Rue Madagascar, BP 1035, Sfax, CP 3018, Tunisia;

    Universite de Sfax, Faculty des Sciences Sfax, Route Soukra Km 3.5, BP 802, 3018 Sfax, Tunisia,Institut National des Sciences et Technologies de la Mer, Centre de Sfax, Rue Madagascar, BP 1035, Sfax, CP 3018, Tunisia;

    Centre de Biotechnologie de Sfax, Route Sidi Mansour Km 6, Sfax, Tunisia;

    Institut National des Sciences et Technologies de la Mer, Centre de Sfax, Rue Madagascar, BP 1035, Sfax, CP 3018, Tunisia;

    Universite de Sfax, Faculty des Sciences Sfax, Route Soukra Km 3.5, BP 802, 3018 Sfax, Tunisia;

    Universite de Franche-Comte, Laboratoire de Chrono-Environnement, UMR CNRS 6249 1, Place Leclerc, F-25030 Besancon Cedex, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    macro-epiphytes; posidonia oceanica; disturbance; spatial variability; gabes gulf;

    机译：大型附生体海洋波塞冬骚乱;空间变异性加贝斯海湾;

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